CVE-2017-17042

HIGH7.5EPSS 0.41%

Arbitrary file read vulnerability in yard server

Published: 12/21/2017Modified: 4/28/2026

Also known as:GHSA-gj4p-3wh3-2rmfDEBIAN-CVE-2017-17042

Description

lib/yard/core_ext/file.rb in the server in YARD before 0.9.11 does not block relative paths with an initial ../ sequence, which allows attackers to conduct directory traversal attacks and read arbitrary files.

Affected packages (2)

Debian/yardfrom 0, < 0.9.12-1
RubyGems/yardfrom 0, < 0.9.11

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	HIGH7.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References (6)

ADVISORYhttps://github.com/advisories/GHSA-gj4p-3wh3-2rmf
ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2017-17042
ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2017-17042
PATCHhttps://github.com/lsegal/yard
WEBhttps://github.com/lsegal/yard/commit/b0217b3e30dc53d057b1682506333335975e62b4
WEBhttps://github.com/rubysec/ruby-advisory-db/blob/master/gems/yard/CVE-2017-17042.yml